IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 112 - 117 of 929
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Question number: 112
» Lines, Angles and Quadrilaterals
Question
If , and, then x and y respectively are ________
Image Shows AB and CD Parallel Line, Find X, Y
Image AB and CD parallel line and find x and y
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 35˚, 55˚ |
|
| b. | 90˚, 30˚ |
|
| c. | 45˚, 35˚ |
|
| d. | 65˚, 25˚ |
|
Question number: 113
» Lines, Angles and Quadrilaterals
Question
In the given figure, XY is a mirror, AB is the incident ray and BC is the reflected ray. If ∠ABC = 116˚, then ∠CBY is ________
Image Defines Angles Find Angle CBY
Image defines the angles and find the one angle
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 43˚ |
|
| b. | 21˚ |
|
| c. | 23˚ |
|
| d. | 32˚ |
|
Question number: 114
» Lines, Angles and Quadrilaterals
Question
In the given figure and, then value of x is________.
Image Defines the Lines BC and DE
Image defines the lines and angle and find the value of x
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 140˚ |
|
| b. | 105˚ |
|
| c. | 135˚ |
|
| d. | 125˚ |
|
Question number: 115
» Lines, Angles and Quadrilaterals
Question
How many sides does a regular polygon have, each angle of which is of measure 135˚?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 6 |
|
| b. | 8 |
|
| c. | 7 |
|
| d. | 9 |
|
Question number: 116
» Lines, Angles and Quadrilaterals
Question
Two supplementary angles differ by 94˚. Then the angles are ________
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 120˚, 60˚ |
|
| b. | 142˚, 38˚ |
|
| c. | 137˚, 43˚ |
|
| d. | 67˚, 113˚ |
|
Question number: 117
» Lines, Angles and Quadrilaterals
Question
In the figure below, lines PQ and JK intersect at O. if and, then are equal to ________
Image Defines the Lines PQ and JK Intersect at O
Image defines the two lines intersect and find the value of ∠QOK
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 56˚ |
|
| b. | 54˚ |
|
| c. | 58˚ |
|
| d. | 90˚ |
|